|
Axes |
Coordinates |
Wyckoff positions |
|
|
|
4a |
4b |
8c |
24d |
24e |
32f |
48g |
|
|
|
|
|
48h |
48i |
96j |
96k |
192l |
I Maximal translationengleiche subgroups |
[2] F-43m |
|
|
4a |
4b |
4c; 4d |
24g |
24f |
2 × 16e |
2 × 24g |
(216) |
|
|
|
|
48h |
48h |
96i |
2 × 48h |
2 × 96i |
[2] F432 |
|
|
4a |
4b |
8c |
24d |
24e |
32f |
48i |
(209) |
|
|
|
|
48g |
48h |
96j |
96j |
2 × 96j |
[2] Fm-3 |
|
|
4a |
4b |
8c |
24d |
24e |
32f |
48g |
(202) |
|
|
|
|
48h |
48h |
2 × 48h |
96i |
2 × 96i |
[4] R-3m |
(1/2)(b + c), (1/2)(a + c), |
-x + y + z, |
1a |
1b |
2c |
3d; 3e |
6h |
2c; 6h |
2 × 6h |
(166) |
(1/2)(a + b) |
x - y + z, |
|
|
6f; 6h |
6g; 6h |
2 × 12i |
2 × 6h; 12i |
4 × 12i |
|
(rhombohedral axes) |
x + y - z |
|
|
|
|
|
|
|
|
(1/2)(-a + b), |
(2/3)(-2x + y + z), |
3a |
3b |
6c |
9d; 9e |
18h |
6c; 18h |
2 × 18h |
|
(1/2)(-b + c), a + b + c |
(2/3)(-x - y + 2z), |
|
|
18f; 18h |
18g; 18h |
2 × 36i |
2 × 18h; 36i |
4 × 36i |
|
(hexagonal axes) |
(1/3)(x + y + z) |
|
|
|
|
|
|
|
conjugate: |
(1/2)(a + b), (1/2)(-b - c), |
(2/3)(2x + y - z), |
|
|
|
|
|
|
|
|
-a + b - c |
(2/3)(x - y - 2z), |
|
|
|
|
|
|
|
|
(hexagonal axes) |
(1/3)(-x + y - z) |
|
|
|
|
|
|
|
conjugate: |
(1/2)(-a - b), (1/2)(b - c), |
(2/3)(-2x - y - z), |
|
|
|
|
|
|
|
|
a - b - c |
(2/3)(-x + y - 2z), |
|
|
|
|
|
|
|
|
(hexagonal axes) |
(1/3)(x - y - z) |
|
|
|
|
|
|
|
conjugate: |
(1/2)(a - b), (1/2)(b + c), |
(2/3)(2x - y + z), |
|
|
|
|
|
|
|
|
-a - b + c |
(2/3)(x + y + 2z), |
|
|
|
|
|
|
|
|
(hexagonal axes) |
(1/3)(-x - y + z) |
|
|
|
|
|
|
|
[3] I4/mmm |
(1/2)(a - b), (1/2)(a + b), c |
x - y, x + y, z |
2a |
2b |
4d |
4c; 8f |
4e; 8h |
16n |
8g; 16k |
(139) |
|
|
|
|
8i; 16m |
8j; 16m |
16l; 2 × 16m |
16n; 32o |
3 × 32o |
conjugate: |
(1/2)(b - c), (1/2)(b + c), a |
y - z, y + z, x |
|
|
|
|
|
|
|
conjugate: |
(1/2)(-a + c), (1/2)(a + c), b |
-x + z, x + z, y |
|
|
|
|
|
|
|
II Maximal klassengleiche subgroups |
Loss of centring translations |
[4] Pn-3m |
|
origin 1 : x + (1/4), y + (1/4), z + (1/4) |
4b |
4c |
2a; 6d |
12f; 12g |
24k |
8e; 24k |
2 × 12g; 24h |
(224) |
|
origin 2: x, y, z |
|
|
24i; 24k |
24j; 24k |
2 × 48l |
2 × 24k; 48l |
4 × 48l |
|
4 conjugate subgroups |
|
|
|
|
|
|
|
[4] Pm-3m |
|
|
1a; 3c |
1b; 3d |
8g |
12i; 12j |
6e; 6f; 12h |
8g; 24m |
2 × 24m |
(221) |
4 conjugate subgroups |
|
|
2 × 12i; 24l |
2 × 12j; 24k |
2 × 24k; 2 × 24l |
2 × 24m; 48n |
4 × 48n |
Enlarged unit cell, isomorphic |
[27] Fm-3m |
3a, 3b, 3c |
(1/3)x, (1/3)y, (1/3)z; |
4a; 24e; |
4b; 24e; |
8c; 2 × 32f; |
24d; 48g; |
3 × 24e; |
3 × 32f; |
3 × 48g; |
|
|
±((1/3), 0, 0); |
32f; 48h |
32f; 48i |
48g; 96k |
48h; 48i; |
3 × 96j; |
6 × 96k; |
6 × 96k; |
|
|
±(0, (1/3), 0); |
|
|
|
96j; 2 × 96k; |
3 × 96k |
192l |
3 × 192l |
|
|
±(0, 0, (1/3)); |
|
|
|
192l |
|
|
|
|
|
±(0, (1/3), (1/3)); ±((1/3), 0, (1/3)); |
|
|
|
|
|
|
|
|
|
±((1/3), (1/3), 0); ±(0, (1/3), (2/3)); |
|
|
3 × 48h; |
3 × 48i; |
9 × 96j; |
9 × 96k; |
27 × 192l |
|
|
±((1/3), 0, (2/3)); ±((1/3), (2/3), 0); |
|
|
3 × 96j; |
3 × 96j; |
9 × 192l |
9 × 192l |
|
|
|
±((1/3), (1/3), (1/3)); ±((2/3), (1/3), (1/3)); |
|
|
3 × 96k; |
3 × 96k; |
|
|
|
|
|
±((1/3), (2/3), (1/3)); ±((1/3), (1/3), (2/3)) |
|
|
3 × 192l |
3 × 192l |
|
|
|
|
Axes |
Coordinates |
Wyckoff positions |
|
|
|
4a |
4b |
8c |
24d |
24e |
32f |
|
|
|
48g |
48h |
48i |
96j |
96k |
192l |
|
[p3] Fm-3m |
pa, pb, pc |
(1/p)x, (1/p)y, (1/p)z; |
4a; ((p - 1)/2) × 24e; |
4b; ((p - 1)/2) × 24e; |
8c; (p - 1) × 32f; |
24d; ((p - 1)/2) × 48g; |
p × 24e; |
p × 32f; |
|
|
+((u/p), (v/p), (w/p)) |
((p - 1)/2) × 32f; |
((p - 1)/2) × 32f; |
((p - 1)/2) × 48g; |
((p - 1)/2) × 48h; |
((p(p - 1))/2) × 96j; |
p(p - 1) × 96k; |
|
p = prime > 2; |
((p - 1)/2) × 48h; |
((p - 1)/2) × 48i; |
(((p - 1)(p - 2))/2) × 96k; |
((p - 1)/2) × 48i; |
((p(p - 1))/2) × 96k; |
((p(p - 1)(p - 2))/6) × 192l |
|
u, v, w = 1, . . ., p - 1 |
(((p - 1)(p - 3))/8) × 96j; |
(((p - 1)(p - 3))/8) × 96j; |
(((p - 1)(p - 2)(p - 3))/24) × |
(((p - 1)2)/4) × 96j; |
((p(p - 1)(p - 3))/8) × |
|
|
|
|
(((p - 1)(p - 3))/4) × 96k; |
(((p - 1)(p - 3))/4) × 96k; |
192l |
(((p - 1)2)/2) × 96k; |
192l |
|
|
|
|
(((p - 1)(p - 3)(p - 5))/48) × |
(((p - 1)(p - 3)(p - 5))/48) × |
|
(((p - 1)3)/8) × 192l |
|
|
|
|
|
192l |
192l |
|
|
|
|
|
|
|
p × 48g; |
p × 48h; |
p × 48i; |
p2 × 96j; |
p2 × 96k; |
p3 × 192l |
|
|
|
p(p - 1) × 96k; |
((p(p - 1))/2) × 96j; |
((p(p - 1))/2) × 96j; |
((p2(p - 1))/2) × 192l |
((p2(p - 1))/2) × 192l |
|
|
|
|
((p(p - 1)2)/4) × 192l |
((p(p - 1))/2) × 96k; |
((p(p - 1))/2) × 96k; |
|
|
|
|
|
|
|
((p(p - 1)2)/4) × 192l |
((p(p - 1)2)/4) × 192l |
|
|
|